|
03-01-2024, 07:56 AM
|
 |
Member
|
|
|
Join Date: Jul 2007
Location: Massachusetts, USA
Posts: 2,811
Likes: 1,187
Liked 4,571 Times in 1,643 Posts
|
|
Quote:
Originally Posted by jaymoore
From the article, under the "Sacred Cows" header: "A recessed chamber simply hides the head of the cartridge, they explained. Since the cartridge headspaces off the extractor, not the counterbore...."
Well, that's just wrong. Every "current" extractor I've seen sits lower than the surrounding cylinder by at least a few thousandths. Therefore the rear cylinder face (or counterbore) would be the reference surface.
|
Maybe he means that the extractor sets the distance between the recoil shield and the rear of the cylinder which is how the headspace is measured.
|